HDD

[sprudeldude]

Hi,

When i plug my HDD Seagate 2TB with no external supply into my pi, and i perform a fdisk -l.
The HDD doesn't show up and i hear that my HDD sounds like it is keep restarting.
What is the problem ?

Grt

[B.Goode]

It is not receiving enough power via the usb connection to function correctly.

[sprudeldude]

It is not receiving enough power via the usb connection to function correctly.

How is that ?
Because my adapter supplies 2A, so the usb connections must have enough to supply my HDD ?

[gkreidl]

On a B it cannot work.
On a B+ you have to add
max_usb_current=1
to config.txt.

[sprudeldude]

On a B it cannot work.
On a B+ you have to add
max_usb_current=1
to config.txt.

I have a B+ model.
So if i change the config.txt, i can see my HDD in fdisk -l ?

[fruitoftheloom]

On a B it cannot work.
On a B+ you have to add
max_usb_current=1
to config.txt.

I have a B+ model.
So if i change the config.txt, i can see my HDD in fdisk -l ?

2.5" USB Drive likely, 3.5" USB Drive unlikely

https://projects.drogon.net/testing-set ... berry-pi-b

[gkreidl]

On a B it cannot work.
On a B+ you have to add
max_usb_current=1
to config.txt.

I have a B+ model.
So if i change the config.txt, i can see my HDD in fdisk -l ?

At least it will make sure, that the USB ports get 1.2 A (all of them together). I'm running my B+ from HDD (root FS) this way. But it depends on the quality of your power supply (including cable) and on other hardware connected to the USB ports.

[gkreidl]

2.5" USB Drive likely, 3.5" USB Drive unlikely

3.5 " drives always have their own power supply (at least for 12V); Many newer ones take the 5V from USB, though, but that shouldn't be a problem for a B+.

[sprudeldude]

Everthing worked after changing the config.txt thanks to gkreidl !